Focus on finding the right measurements. If you need to convert international sizes, please see International Jeans Size Conversions.
I would say though, still, that this was probably the third most effective brand I've tried with regards to actual number of pounds lost.
The most was with a brand called LipoVida -- but I literally wanted to vomit ever day that I took them. Plus I heard that 80 HCA wasn't actually legal or possible (I'm not an attorney or a doctorscientist, so don't quote me on that - just passing along what I heard) The best so far for actual weight loss for me plus no nausea has been Pure GCE (I ordered mine through the site 'bestgarciniacambogiapills' dot com.
Again, if you don't mind the jitters and all that jazz, it may be worth your time to check out the LipoVida brand.
If your measuring existing jeans just lay them flat and measure at the widest point of the jeans and double that measurement. Inseam length: Measure the inside of your leg from your crotch to the floor wearing the shoes you will wear with the jeans. To measure the length of the jeans, the measuring tape is placed on the inner seam of the jeans leg, from groin to the bottom. There are different measuring systems for pants. For example, in the W/L size system, a jeans size of 36/32 means that you have a waist of 36 inches and leg length of 32 inches. Waist: Measure flat across the back waistband from one side to the other with the natural dip. Double the number to get actual waist size. Inseam: Measure from the crotch seam to the bottom of the leg on the inside seam. Outseam: Measure from the bottom of the leg to the upper edge of the waistband.